Like how sometimes your character casually walks on rails before sliding and you have to wait for them to start, or jump on again to go. Or how you land on the rail but it doesn't register so you fall to your doom.

Ming-Na Wen (who is awesome) let is slip a few months back that she had done voice recording for Disney Infinity. At the time it wasn't clear if she was going to be an NPC or a figure. But now we know - SHE'S A SUPER AWESOME FIGURE!!!!!